package com.class05.servlet;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebServlet("/servletB")
public class ServletB extends HttpServlet {
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
//        1、从请求域中获取数据
        String name = (String) req.getAttribute("name");
        System.out.println(name);
//        2、从session域中获取数据
        String gender = (String) req.getSession().getAttribute("gender");
        System.out.println(gender);
//        3、application域中获取数据
        Object age = getServletContext().getAttribute("age");
        System.out.println(age);

    }
}
